#include"mystdio.h"
#include<string.h>
#include<unistd.h>
#define MYFILE "sys.txt"

int main()
{
  MY_FILE *fp=my_fopen(MYFILE,"w");

  if(fp==NULL)return 1;

  const char* str="hello my my_fwrite";
  int cnt=0;
  while(3)
  {
    char buffer[1024];
    snprintf(buffer,sizeof(buffer),"%s:%d\n",str,cnt++);
    size_t size=my_fwrite(buffer,strlen(buffer),1,fp);
    sleep(1);
    printf("当前成功写入：%lu个字节\n",size);
  }
  my_fclose(fp);
  return 0;
}
